Baseboard heater



FIG. 1 is a perspective view of a baseboard heater showing our newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof; and,

FIG. 5 is a top plan view thereof.

The broken lines in FIG. 2 depict portions of the baseboard heater thatform no part of the claimed design.

CLAIM The ornamental design for a baseboard heater, as shown anddescribed.